... 4.Super materials. 1.excellet performance of waterproof 2.sealing 3.oil resistance 4.easily installed 5.stable performance 6 ... viton(FKM), neoprene, HNBR, NBR+PVC, NBR, natural rubber, SBR, IR, IIR(butyl rubber), CR (neoprene), EPDM, SBR, AU, ACM, CO ... . We supply the best products and service with the competitive price. Remark: rapid casting& prototyping About ProduceProduct Show square rubber gasket